//
//  WBHomeViewController.swift
//  传智微博
//
//  Created by wong on 16/12/8.
//  Copyright © 2016年 Canis. All rights reserved.
//

import UIKit

//定义全局常量，尽量使用private修饰，否则到处都可以访问

private let cellId = "cellId"

class WBHomeViewController: WBBaseViewController {

    //列表视图模型
    lazy var listViewModel = WBStatusListViewModel()
    
    
    override func loadData() {
        
        print("准备刷新，最后一条\(self.listViewModel.statusList.last?.text)")
        listViewModel.loadStatus(pullup: self.isPullup) { (isSuccess, shouldRefresh) in
            print("加载数据结束")
            //结束刷新控件
            self.refreshControl?.endRefreshing()
            
            //恢复上拉刷新标记
            self.isPullup = false
            
            //刷新表格
            if shouldRefresh{
                self.tableView?.reloadData()
            }
        }
        
           }
    
    func showFriends() {
        print(#function)
        let vc = WBDemoViewController()
        //vc.hidesBottomBarWhenPushed = true
        
        //push 的动作是 nav 做的 
        navigationController?.pushViewController(vc, animated: true)
    }
}

//MARK: - 表格数据源方法,具体的数据源方法实现，不需要 super
extension WBHomeViewController{
    
    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return listViewModel.statusList.count
    }
    
    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        //1.取cell
        let cell = tableView.dequeueReusableCell(withIdentifier: cellId, for: indexPath)
        //2.设置cell
        cell.textLabel?.text = listViewModel.statusList[indexPath.row].text
        //3.返回cell
        return cell 
    }
    
}

//MARK: -设置界面
extension WBHomeViewController{
    override func setupTableView() {
        
        //重写父类的方法
        super.setupTableView()
        
        //设置导航栏按钮
        
        //无法高亮
        //navigationItem.leftBarButtonItem = UIBarButtonItem(title: "好友", style: .plain, target: self, action: #selector(showFriends))
        
        //Swift 调用 OC 返回 instancetype 的方法，判断不出是否可选
//        let btn:UIButton = UIButton.cz_textButton("好友", fontSize:  16, normalColor: UIColor.darkGray, highlightedColor: UIColor.orange)
//        btn.addTarget(self, action: #selector(showFriends), for: .touchUpInside)
//        
//        navigationItem.leftBarButtonItem = UIBarButtonItem(customView: btn)
        
        navItem.leftBarButtonItem = UIBarButtonItem(title: "好友", target: self, action: #selector(showFriends))
        //注册原型 cell
        tableView?.register(UITableViewCell.self, forCellReuseIdentifier: cellId)
        
        setupNavTitle()
    }
    
    /// 设置导航栏标题
    func setupNavTitle(){
        
        let  title = WBNetworkManager.shared.userAccount.screen_name
        let button = WBTitleButton(title:title)
        
        navItem.titleView = button
        button.addTarget(self, action: #selector(clickTitleButton), for: .touchUpInside)
    }
    
    func clickTitleButton(btn:UIButton){
       //设置选中状态
        
        btn.isSelected = !btn.isSelected
        
    }
}
